package com.okwanshiwu.pattern.ProxyPattern;

public class ProxyImage implements Image{

    private RealImage realImage;
    private String fileName;

    public ProxyImage(String fileName){
       this.fileName = fileName;
    }

    @Override
    public void display() {
       if(realImage == null){
          realImage = new RealImage(fileName);
       }
       realImage.display();
    }
 }